Changing of New VISA Debit card details

Hello,

Could someone help me on how to change my old visa debit card details to a my new card details?

I humbly ask all of your kind assistance.

Respectfully,

Charlemagne Grey

Summary

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Tap “+” (next to amount in “Accounts” tab), then expand cards list then tap “+ Add new card”

I cannot find the + add new card.
there is no + next to amount in Accounts tab.
Where is the accounts tab anyway I dont have one??

The app has changed much in the last month or two.
Cards are shown as an icon on the bottom of the Home screen…